colorlog.ColoredFormatter is a formatter for use with Python's logging module
that outputs records using terminal colors.

The ColoredFormatter class takes several arguments:
- format: The format string used to output the message (required).
- datefmt: An optional date format passed to the base class. See
  logging.Formatter.
- reset: Implicitly adds a color reset code to the message output, unless the
  output already ends with one. Defaults to True.
- log_colors: A mapping of record level names to color names. The defaults can
  be found in colorlog.default_log_colors.
- secondary_log_colors: A mapping of names to log_colors style mappings,
  defining additional colors that can be used in format strings.
- style: Available on Python 3.2 and above. See logging.Formatter.

WWW: https://github.com/borntyping/python-colorlog